At the conclusion of The Mark of Athena, Annabeth and Percy tumble into a pit leading straight to the Underworld. The other five demigods have to put aside their grief and follow Percy’s instructions to find the mortal side of the Doors of Death. If they can fight their way through the Gaea’s forces, and Percy and Annabeth can survive the House of Hades, then the Seven will be able to seal the Doors both sides and prevent the giants from raising Gaea. But, Leo wonders, if the Doors are sealed, how will Percy and Annabeth be able to escape?

They have no choice. If the demigods don’t succeed, Gaea’s armies will never die. They have no time. In about a month, the Romans will march on Camp Half-Blood. The stakes are higher than ever in this adventure that dives into the depths of Tartarus.Goodreads

Oh god guys. After the massive plot twist cliffhanger at the end of The Mark of Athena, The House of Hades has been on my “desperately want” “must buy immediately when released” list. I need to know what happens next. And I need more Percabeth feels.

Yes! Do start it! I didn't like the first two too much (The Lost Hero and The Son of Neptune) but The Mark of Athena was AMAZING and just made the whole series that much more awesome. I hope you can read them soon!